Innovative Multi-Feed-Per-Beam Reflector Antenna for Space-Borne Conical-Scan Radiometers

Jakob R. de Lasson, Cecilia Cappelin, Knud Pontoppidan, Oleg Iupikov, Marianna Ivashina, Niels Skou, Benedetta Fiorelli

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Abstract

We present an antenna for use on conical-scan space-borne radiometers in C band and demonstrate that stringent radiometric requirements can be met. The antenna consists of as m offset reflector fed by a focal plane array in a multi-feed-per-beam configuration, so far never used in ocean observation missions. We use distinct element beams and two optimization routines for obtaining element excitation amplitudes and phases, and with either routine, and in both x- and y-polarization, compliant beams, with footprint < 20 km, distance to coast < 20 km and accuracy < 0.25 K, are obtained. These results may pave the way for use of focal plane arrays with digital beamforming in future radiometric ocean observation missions.
Original languageEnglish
Title of host publication2018 Ieee International Symposium on Antennas and Propagation and Usnc/ursi National Radio Science Meeting
PublisherIEEE
Publication date2019
Pages1729-1730
ISBN (Electronic)978-1-5386-7102-3
DOIs
Publication statusPublished - 2019
Event2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting - The Westin Boston Waterfront Hotel, Boston, United States
Duration: 8 Jul 201813 Jul 2018

Conference

Conference2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting
LocationThe Westin Boston Waterfront Hotel
Country/TerritoryUnited States
CityBoston
Period08/07/201813/07/2018

Keywords

  • Antenna arrays
  • Radiometers
  • Oceans
  • Optimization
  • Microwave radiometry
  • Sea measurements

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